Which parts fail
Components named in complaints (automatic and manual transmissions, CVT, axles, driveshaft, 4WD/AWD).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2003 Mini Cooper owners, lightly cleaned up (personal details are redacted by NHTSA).
Tl* the contact owns a 2003 Mini Cooper. While driving 70 MPH, the vehicle started losing power. The accelerator pedal was being depressed with no response. The vehicle was pulled over to the side of the road and was able to be drivin home at a low rate of speed. The vehicle was taken to a dealer where it was diagnosed that the transmission needed to be replaced. The repairs were performed. The manufacturer was not made aware of the failure. The failure mileage was 86,353. ...updated 04/26/16 updated 12/11/2017
The car would not easily shift gears. When I brought it to the Mini Cooper dealership, I was told that all of the transmission fluid leaked out of the transmission. The transmission is "sealed", so the transmission fluid cannot be checked or changed. I was told that I needed to replace the transmission and clutch. The car should not have a sealed transmission if it can develop a leak so easily.
Tl* the contact owns a 2003 Mini Cooper. The contact stated that the gear shifter failed to move when attempting to operate the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 158,000.
The vehicle for months would make a small jump forward when putting in reverse. Then the transmission would make a grinding noise when in drive. The car would feel spongy in drive when first starting off in the morning and at full stops.
We purchased a 2003 Mini Cooper just weeks ago from a private party. Almost instantly the power steering went out while my daughter was driving. Luckily she wasn't in heavy traffic on the la freeway. We were told by the service center that we needed a new power steering pump. We purchased this and had it installed for approx.$1200.00. However the electric power steering pump fan still would not shut off when the engine was turned off, so this issue was still not resolved. Immediately following this repair my daughter was driving on the freeway at 60 MPH when the car suddenly jerked and slowed to a stop. Luckily my daughter was in the right hand lane and could pull over on to the side of the busy freeway.(still no power steering working)the car was towed to the Mini dealer. They diagnosed that the CVT transmission needs to be replaced, at a cost of $7150 approx. …
Driving in 2nd gear (manual transmission) and the car brakes everything locked up skidding to an immediate, violent stop that squealed the tires and made smoke, oil everywhere on the road, engine still running fine. Scary, could not even push the car off the road because it was stuck in gear. Warranty company towed it to a Mini dealer in valencia, ca. Two weeks later, they granted warranty work however, the price tag is $4000!! Warranty only covers $2000 so I have to get another used transmission! I see where there is a recall on all automatic transmissions 2003-2007 because of a class action law suit against Mini Cooper. Isn't it possible the same thing wrong with the automatic transmission is also happening with the manual transmissions? …
2003 Mini Cooper transmission failure at 70,000 miles, 4 years. Mini USA and BMW of north America, llc have a long history of this failure and refuse to take accountability for their defective parts, claiming it's a characteristic of the car. Smells of deceptive trade practices to me. Not to mention a monopoly-- there are only two dealership in dallas/fort worth that service Mini coopers, both tell me that the cost will be between $6K-9K to replace w/labor costs. Pep boys and other independents won't or cannot touch it because it's a Mini Cooper and only Mini authorized dealers supposedly have specialty software/parts to perform job. This is a racket, Mini and BMW need to step up and stop selling defective transmissions and replace this at their cost and stand by their product and faulty and defective manufacturing. …
I will be installing what will be the third manual 5-speed transmission in my Mini. Same problem, seems to be the final drive bearing is failing likely due to lack of lubrication. I have records of all service and check it regularly and it has never been low. The bearing is apparently not getting a proper supply of fluid. Problem number two, my power steering pump failed on me once. It exploded while I was driving. The hoses basically got too hot and blew up. I fortunately was able to limp it to a shop without any fire. On another occasion the power steering fan continued to run even when the ignition was shut off, needed to replace the entire pump this time which cost me $500 installed with a remanufactured pump. Third, I have had to put three windshields in the car. None of these repairs were warranted! …
My 2003 Mini Cooper with the CVT transmission began making a ratcheting noise from the transmission. The car was towed back to town, and after talking to the dealer, it was driven to the dealer. I was told it needed a new transmission: $7,200.00. No rebuild available. It had just turned 90,000 miles, driven by myself (retired) and my wife; very easy driving. This was over half the value of the car, so we drove it to a transmission shop that we were aware of for a second opinion. On the test drive at that shop, the transmission "blew up" and locked up everything on the street. The steel belt in the transmission had come apart, destroying everything internally. Had this happened on the freeway or a busy street, it could have been disastrous. Upon researching this transmission, I find that this problem is not at all uncommon. …
My 2003 Mini Cooper has had total transmission failure (CVT transmission) at only 46,129 miles. Failure was total and sudden and vehicle is undriveable without new transmission. The dealer quoted me a cost of $10,055.44 (parts $6,943.28, labor $2,700 + tax). This cost is more that the vehicles' current value. I have been told that only a new CVT transmission can replace the faulty one, and even then that transmission May again fail as they are such terrible transmissions. The car will not take any other transmission option. The dealer basically laughed and said, "I don't suppose you have an extra $10,000 laying around," when he told me the cost of the repair. The dealer has offered no assistance in lowering the cost, but basically said "tough luck" and taken no responsibility. The car is useless and unfixable at this cost. …
Transmission complaints in other Cooper years
Frequently asked questions
How common are transmission problems on the 2003 Mini Cooper?
NHTSA has 89 complaints about the transmission & drivetrain of the 2003 Mini Cooper, 28% of the model year's 320 complaints. The component named most often is automatic transmission (53 mentions).
Is there a recall for 2003 Mini Cooper transmission problems?
No. NHTSA lists no transmission & drivetrain recall for the 2003 Mini Cooper, though it has 2 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2003 Mini Cooper transmission problems start?
Half of the complaints with a recorded mileage happened before about 70,000 miles, and 1% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.